As apartheid’s justifications failed, its founding urgency became defensive violence.

Evidence

Along the way, the original urgency of apartheid’s articulation necessarily and predictably became defensive, increasingly violent as its terms were quickly seen to be broadly offensive on every register. Urgency devolved into emergency, attempting frantically to keep at bay the perceived barbarians, the ghosts of its own making, at the gate. — David Theo Goldberg, The Threat of Race, 1531